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多话筒使用的相位问题会让声音变“空”,相位问题往往由延时信号与原信号叠加产生。利用3∶1的话筒摆位原则可以很好地避免相位差。
The phase problem with multiple microphones makes the sound “empty,” and the phase problem is often caused by the superposition of the delay signal and the original signal. The use of 3: 1 microphone placement principle can be very good to avoid the phase difference.